This accredited continuing education program is supported by an educational grant from Blueprint Medicine. It provides timely and practical education on systemic mastocytosis (SM). To obtain CME credit, visit https://checkrare.com/learning/p-systemic-mastocytosis-recognition-diagnosis-and-clinical-management/ SM is a rare, chronic disorder driven by aberrant mast cell accumulation across multiple organ systems. Although diagnostic criteria are well established, a recent natural history study found that the average time to diagnosis is nearly five years. This prolonged delay—largely due to limited awareness of SM and its early symptoms—often results in unnecessary disease progression and inappropriate treatment. To address this clinical gap, this activity, led by Daniel J. DeAngelo, MD, PhD, Chief, Division of Leukemia at the Dana-Farber Cancer Institute, Harvard Medical School, in Boston, MA, provides an overview of the early signs and symptoms of SM, outlines the appropriate diagnostic criteria and tools, and reinforces the importance of timely referral and testing for these patients to be properly managed. Led by a clinical expert with experience diagnosing and treating patients with SM, this 45-minute CME program will highlight early signs of SM, outline diagnostic criteria and tools, and reinforce the importance of timely referral/testing. Target Audience This activity has been designed to meet the educational needs of physicians specializing in hematology, dermatology, gastroenterology, immunology, and family practice. Other members of the care team may also participate. Learning Objectives After participating in the activity, learners should be better able to: Describe the early symptoms of systemic mastocytosis and its clinical relevance. Apply best practices to diagnose systemic mastocytosis more efficiently. Faculty Daniel J. DeAngelo, MD, PhD Chief, Division of Leukemia Dana-Farber Cancer Institute, Harvard Medical School Boston, MA Disclosure Statement According to the disclosure policy of the Academy, all faculty, planning committee members, editors, managers and other individuals who are in a position to control content are required to disclose any relationships with any ineligible company(ies). The existence of these relationships is not viewed as implying bias or decreasing the value of the activity. Clinical content has been reviewed for fair balance and scientific objectivity, and all of the relevant financial relationships listed for these individuals have been mitigated. Disclosure of relevant financial relationships are as follows: Faculty Educator/Planner Dr. DeAngelo discloses the following relevant financial relationships with ineligible companies: Consultant: Amgen, Autolos, Blueprint Medicines, Incyte, Jazz, Novartis, Pfizer, and Takeda Research Support: AbbVie, Glycomimetics, Novartis, and Blueprint Medicines Data Safety Monitoring Board: Daiichi-Sankyo Other Planners for this activity have no relevant financial relationships with any ineligible companies. This activity will review off-label or investigational information. The opinions expressed in this educational activity are those of the faculty, and do not represent those of the Academy or CheckRare CE. This activity is intended as a supplement to existing knowledge, published information, and practice guidelines. Learners should appraise the information presented critically, and draw conclusions only after careful consideration of all available scientific information. Accreditation and Credit Designation In support of improving patient care, this activity has been planned and implemented by American Academy of CME, Inc. and CheckRare CE. American Academy of CME, Inc. is Jointly accredited by the Accreditation Council for Continuing Medical Education (ACCME), the Accreditation Council for Pharmacy Education (ACPE), and the American Nurses Credentialing Center (ANCC), to provide continuing education for the healthcare team. Physicians American Academy of CME, Inc., designates this enduring material for a maximum of 0.75 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Other HCPs Other members of the care team will receive a certificate of participation. There are no fees to participate in the activity. Participants must review the activity information including the learning objectives and disclosure statements, as well as the content of the activity. To receive CME credit for your participation, please complete the pre and post-program assessments. Your certificate will be emailed to you within 30 days. Privacy For more information about the American Academy of CME privacy policy, please access http://www.academycme.org/privacy.htm For more information about CheckRare’s privacy policy, please access https://checkrare.com/privacy/ Contact For any questions, please contact: CEServices@academycme.org Copyright © 2026. This CME-certified activity is held as copyrighted © by American Academy of CME and CheckRare CE. Through this notice, the Academy and CheckRare CE grant permission of its use for educational purposes only. These materials may not be used, in whole or in part, for any commercial purposes without prior permission in writing from the copyright owner(s). Rare Discussions is produced by CheckRare, the leading multimedia platform dedicated to advancing education, awareness, and innovation across the rare disease community. 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